18459503040 has 672 divisors, whose sum is σ = 70606017792. Its totient is φ = 4037836800.

The previous prime is 18459503011. The next prime is 18459503063. The reversal of 18459503040 is 4030595481.

It is a self number, because there is not a number n which added to its sum of digits gives 18459503040.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 172518667 + ... + 172518773.

Almost surely, 2^18459503040 is an apocalyptic number.

18459503040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18459503040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35303008896).

18459503040 is an abundant number, since it is smaller than the sum of its proper divisors (52146514752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18459503040 is a wasteful number, since it uses less digits than its factorization.

18459503040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 18459503040 in words is "eighteen billion, four hundred fifty-nine million, five hundred three thousand, forty".